Apparatus for numbering paper sheets



Dec. 26, A W E$ APPARATUS FOR NUMBERING PAPER SHEETS Filed Dec. 2, 19322 Sheets-Sheet l flrl'fiur W Earries Dec. 26, 1933. A. w. HARRIESAPPARATUS FOR NUMBERING PAPER SHEETS Filed Dec. 2, 1932 2 Sheets-Sheet 2A TTORNEVSI Patented Dec. 26, 1933 AI PARATUS FOR NUMEERING PAPER SHEETSJ Arth ur WilliamHaiiries, 'ljwickenliann England Application December2, 1932, Serial No. 645,490, #1

i and in Great Britain February 1, 1932} 3 Claims.

In connection with machines for printing commercial forms, invoices,manifold sheets and the,

like it is a common. practice to mount on the machine numberingmechanism which imprints successive numbers on the sheets as they arefed when desired so that during 'the travel of any predetermined numberof sheets the numbering mechanism will not function.

In order that the nature of the improvements may be clearly understood Ihave illustrated the same. in the accompanying drawings applied by wayof example to a rotary printing machine similar reference charactersrelating to like parts in all the figures.

Figure 1 is a general view of the machine showing the main partsaffected by the invention.

Figure 2 is an elevational view of apparatus according to this inventiondrawn to a larger scale and Figure 3 is a plan thereof.

Figure 4 is a sectional elevation on'the line AB Figure 3 drawn to astill larger scale.

Referring first to Figure 1, the impression cylinder is shown at 0,being driven through the intermediate shaft d by the motor I, and themain shaft of the numbering mechanism at e. The apparatus for carryingout this'invention is shown but more particularly and to a larger scalein Figures 2, 3 and 4. and referring now to these figures it will beseen that in proximity to the num- 4 bering mechanism, but on theopposite side of the printing machine to that on which the operatingmeans therefor is mounted, ratchet wheels 9 and h disposed side by side,are loosely mounted on a shaft 70, the space m between'two of the 5teeth of the wheel g, being deeper than the spaces n between the otherteeth of both the wheels 9/ and h.

Carried on an arm 0 loosely mounted on the shaft is and driven by theeccentric p on the impression cylinder shaft q and the connecting rod rso as to rotate the ratchet wheels 5/ and h is a double-nosed pawl s. Itwill be clear that when the longer nose t of the pawl s engages therecesses n of the wheel g this wheel will be, rotated idly on the shaftis. When however the longer nose t enters the deep recess m of the wheelg the short nose u of the'pawl will engage the recess 12 of the wheel hand this wheel will also consequently be rotated and thereby rotate thesprocket pinion 0 connected to or integral with it.

An endless chain w passing around the pinion v and hanging down freelyis formed of a number of links a: corresponding to a multiple of thenumber of sheets to be numbered and formed into a pad, and an additionallink 11 that carries a pin 2 which in the course of the travel of thechain it strikes and thereby trips the detent 2 pivotally mounted on thepin 3. I

The detent 2 engages the end of a lever 4 mounted on the shaft 5 thatextends transversely of, the machine and carries at its other end alever 6 with a roller '7 on its extremity that normally contacts withthe roller 8 that is carried by the bar 9 connected by the pin 10 to acorresponding bar 11 carrying a pin 12 that normally bears against thestep 13 in the cam 14 on the shaft 6 to drive the numbering mechanism.The cam 15 p 15 will raise the bar 9 thus also raising thebar 11 so thatthe pin l2 misses the step 13 in the numbering cam 14 and the numberingmechanism is therefore thrown out of operation and remains idle untilthe travel of link y and pin 2 beyond the detent 2 allows this member toreturn to its normal position into engagement with the lever 4 and thelever 6 is swung back to its former position so that the numbering camis operated and the numbering of the sheets proceeds in the usualmanner.

What I claim is: s p 1. In combination, an impression device, anumbering mechanism, a sprocket wheel operated by said impressiondevice, an endless chain driven by said sprocket wheel and having anumber of links corresponding to the number of sheets to be numbered andhaving an additional link, a 7 pin carried by said additional link, anda trip mechanism operated by said pin for throwing said numberingmechanism out of action.

2. An apparatus for periodically throwing a numbering mechanism out ofoperation comprising a driven sprocket wheel, an endless chain 'nismceases to operate.

her of links corresponding to the number of sheets to be numbered andhaving an additional link, a pin carried by said additional link, apivoted detent in the path of travel of said pin, a lever engaged bysaid detent and rocked thereby when the pin moves said detent, a shaftto which said lever is fixed, a second lever fixedto said shaft, a 'camadapted to operate said numbering mechanism and having a step thereon, apin normally engaging said step, a rotating lever system carrying saidpin and into the path of travel of which the free end of said secondlever is adapted to be disposed when the first lever is rocked wherebythe pin is moved out of engagement with the cam and the numberingmecha-' 3. In combination, an impression device, a.

driven by said sprocket wheel and having a numnumbering mechanism, apair of ratchet wheels disposed side by side, the space between two ofthe teeth of one ratchet wheel being deeper than the spaces between theother teeth of both ratchet Wheels, a pawl having a long nosecooperating ing to the number of sheets to be numbered andv having anadditional link, a pin carried by said additional link, and a tripmechanism operated by said pin for throwing said numbering mechanism outof action.

ARTHUR WILLIAM HARRIES.

